CN111100335A - Organosilane coated steel wire compound for rubber, preparation method and coating method - Google Patents
Organosilane coated steel wire compound for rubber, preparation method and coating method Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3437—Six-membered rings condensed with carbocyclic rings
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C08K7/04—Fibres or whiskers inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
Abstract
The invention relates to an organosilane coated steel wire compound for rubber, a preparation method and a coating method. The compound comprises 100 parts of a silane coupling agent and 10-100 parts of a solvent, wherein the silane coupling agent is a silane coupling agent containing sulfur or unsaturated double bonds, and the compound can further comprise 1-20 parts of a catalyst. The compound is structurally characterized in that an organosilane coupling agent reacts with hydroxyl on the surface of metal through alkoxy on silicon to form a covalent bond, and meanwhile, sulfur or double bonds in the organosilane coupling agent participate in rubber vulcanization to form the covalent bond with rubber molecules, so that the compound can be used as a framework material in the rubber field, the interface bonding force between a steel wire and rubber is increased, and the compound also has a steel wire anticorrosion function.
Description
Technical Field
The invention relates to the field of rubber, in particular to an organosilane coated steel wire compound for rubber, a preparation method and a coating method.
Background
The main methods for treating the metal surface include traditional treatment methods such as sand blasting, sand paper polishing, acid washing, phosphating, chemical etching, chemical conversion transition layer and the like, and emerging treatment methods such as rare earth passivation, dacromet, silane coupling agent and the like. (Wangxueming, application study of silane coupling agent in Metal pretreatment and organic coating [ D ], Shandong university, 2005)
Silane coupling agents (abbreviated as "SCA" or "silane") were first developed by united states and dow corning companies in the first 40 th century, primarily for the processing of plastics and rubbers filled with silicates, silica and for the improvement of their properties. The silane can be used as a transition layer to improve the adhesion of the coating on the metal surface, and can also be used as an anticorrosive layer, and the anticorrosive performance of the silane is superior to that of a phosphating film. Tests show that the more the number of Si-O bonds in the molecular structure of the silane coupling agent is, the more the silane coupling agent is combined with the metal substrate, the more the formed reticular structure is covered with the silane film layer, and the better the corrosion prevention effect on the metal substrate is. (study on application of metal surface silanization treatment in Zhangyodong, Chenyunbang, Shimin, etc. [ J ]. Metal functional Material, 2011, 18(5):66-69.)
The silanization treatment is a process of treating the surface of a metal or nonmetal material with organosilane as a main raw material. The silane contains two different chemical functional groups, and one end of the silane can react with hydroxyl on the surface of an inorganic material (such as glass fiber, silicate, silicon dioxide, metal and oxide thereof) to generate a covalent bond; the other end can generate covalent bond with polymer (resin, rubber, plastic and fiber), so that the two materials with different properties are combined to play a role in improving the performance of the composite material. The silylation process can be described as a four-step reaction model, (1) hydrolysis of 3 Si-OR groups attached to silicon to Si-OH; (2) dehydrating and condensing Si-OH to obtain oligomeric siloxane containing Si-OH; (3) Si-OH in the oligomer forms hydrogen bonds with OH on the surface of the substrate; (4) during the heat curing process, covalent bonds are formed with the substrate along with dehydration reaction, but at the interface, only one of the silicon hydroxyl groups of the silane is bonded with the surface of the substrate, and two Si-OH groups are left to be condensed with Si-OH in other silanes or in a free state. (quoted from: glory, Lixinli. New environmental protection technology for metal surface treatment-silanization treatment [ J ]. 2008. Western electroplating coating high-level forum, 2009.)
Patent CN102181228A discloses a metal surface silanization treating agent and a process method for silanization treatment of metal surface by using the same. The metal surface silanization treating agent comprises organic silane, organic acid, alcohol, an accelerant and deionized water, and the mixed silanol solution generates a surface protective film on a metal matrix, so that excellent adhesive force can be provided for the combination of a metal base material and various coatings such as polyester type, epoxy type, acrylic type and the like.
Patent CN106422423A discloses a method for preparing a super-hydrophobic wire mesh, which comprises the following steps: firstly, respectively ultrasonically cleaning a commercial metal wire mesh by using dichloromethane and water to remove pollutants on the surface of the wire mesh, and drying; soaking the dried wire mesh in piranha solution at room temperature, cleaning, stirring in the solution dissolved and dispersed with silane coupling agent, cleaning, and drying; soaking the dried wire mesh into an aqueous phase solution in which aqueous phase monomers and micro-nano particles are dissolved and dispersed at room temperature to react; taking out and placing in the air for airing; putting the dried wire mesh into an oil phase solution in which an oil phase monomer is dissolved for reaction; taking out and placing in the air for airing; putting the dried wire mesh into the aqueous phase solution again for reaction, taking out and drying in vacuum; and soaking the dried metal wire mesh in a hydrophobe solution with a long carbon chain, and washing and drying the metal wire mesh by using a solvent of the hydrophobe solution to prepare the super-hydrophobic super-oleophylic metal wire mesh.
Patent CN103966590B discloses a monosilane coupling agent composite chromium-free passivation solution and a method for passivating the surface coating of galvanized steel wires. The galvanized steel wire surface coating method comprises the steps of steel wire surface pretreatment, steel wire surface oil removal, steel wire surface activation, roller coating film forming and the like. The roller coating film forming step relates to monosilane composite chromium-free passivation solution, and the main components of the passivation solution comprise: fluozirconic acid, citric acid, aluminum sulfate, vanadyl sulfate, silica sol and silane coupling agent.
Patent CN103387694B discloses a method for producing silane-treated steel wire, adding deionized water and solvent into silane coupling agent to form silane treating agent; coating the silane treating agent on the surface of the steel wire body; forming a film layer containing-R' -Si-O-Me chemical bonds on the surface of the steel wire after drying at the temperature of 100-120 ℃.
Patent CN101111543B discloses a method for surface treatment of brass-plated steel wire or steel cord with a metal-containing silane coupling agent solution. Adding the purified ethanol and water mixed solution into a polyethylene container, adding a silane coupling agent, and stirring at room temperature for reaction. The brass plate was immersed in a reaction solution containing a silane coupling agent, taken out and dried in an oven at 80 ℃.
The above metal surface silanization treatment technology has the following problems: the related raw materials are complex, some raw materials have strong oxidizing property, strong acidity, toxicity and even explosiveness, the operation steps are complicated, and the silanization reaction effect and the reaction uniformity of the metal surface are difficult to ensure.
Disclosure of Invention
The present invention provides an organosilane coated steel wire composite, a preparation method and a coating method in order to solve the above problems.
The structural characteristic of the organosilane coated steel wire compound is that the organosilane coupling agent reacts with the hydroxyl on the surface of metal through alkoxy on silicon to form a covalent bond, and simultaneously sulfur or double bonds in the organosilane coupling agent participate in rubber vulcanization to form a covalent bond with rubber molecules. The organosilane coated steel wire compound can be used as a framework material to be applied to the field of rubber, the interface bonding force between a steel wire and rubber is increased, and meanwhile, the organosilane coating layer also has a steel wire anticorrosion function.
One of the purposes of the invention is to provide a steel wire compound coated with organosilane for rubber, which is prepared from the following raw materials in parts by weight:
100 parts of a silane coupling agent;
10-100 parts of a solvent; preferably 40 to 60 parts.
Wherein the silane coupling agent contains sulfur or unsaturated double bonds; the solvent is an alcohol or ketone solvent, preferably ethanol.
Preferably, the silane coupling agent has the following structure:
wherein R is1、R2、R3Identical or different, independently of one another, are alkoxy radicals R7O-, alkyl polyether radical-O- (R)8-O)m-R9Structure R7Is C1-C6 straight chain or branched chain alkyl, R8Is a C1-C3 straight chain alkyl group, m is 1-20, R9Is C10-C20 straight chain alkyl; n is 1-4;
R4is C1-C6 straight chain alkyl;
R5h, straight chain or branched chain saturated aliphatic C1-C20 alkyl, straight chain or branched chain unsaturated aliphatic C1-C20 alkyl;
R6is a straight chain or branched chain unsaturated aliphatic C1-C20 alkyl, straight chain or branched chain unsaturated aliphatic C1-C20 hydrocarbon containing hetero atomsAnd (4) a base.
Among them, more preferably, the commercial double bond-containing silane coupling agent includes at least one of vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (β -methoxyethoxy) silane, gamma-methacryloxypropyltrimethoxysilane, and alpha-methacryloxymethyltriethoxysilane.
Commercial sulfur-containing silane coupling agents include: at least one of gamma-mercaptopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, bis- [ gamma- (triethoxysilyl) propyl ] disulfide (Si75), bis- [ gamma- (triethoxysilyl) propyl ] tetrasulfide (TESPT, Si69) and Si 363.
The purpose of selecting the silane coupling agent containing sulfur or unsaturated double bonds is to enable the silane coupling agent to chemically react with diene rubber in the vulcanization process, so that the steel wire coated with organic silane can be chemically crosslinked with an interface layer of the rubber.
The organosilane coated steel wire composite may further include a catalyst in an amount of 1 to 20 parts, preferably 1 to 10 parts, and more preferably 4 to 6 parts, based on 100 parts by weight of the silane coupling agent.
Preferably, the catalyst is at least one of amine substances (such as aliphatic amine, diphenylguanidine, dicyclohexylamine, quinuclidine and polyethyleneimine), dibutyl tin dilaurate, ionic liquids (such as cation-selected quaternary ammonium salt ions, quaternary phosphonium salt ions, imidazole salt ions, pyrrole salt ions, anion-selected halogen ions, tetrafluoroborate ions, hexafluorophosphate ions and carboxylate ions), and more preferably at least one of diphenylguanidine, quinuclidine, polyethyleneimine, ionic liquids (1-butyl-3-methylimidazolium tetrafluoroborate, 1-methylpyrrole mercaptopropionate, 1-butyl-1-methylpyrrole mercaptopropionate and triphenyl phosphonium bromide).
The catalyst is selected to accelerate the reaction speed of the silane coupling agent and the hydroxyl on the metal surface in the silanization reaction.
The invention also provides a preparation method of the steel wire compound coated with the organosilane for the rubber, which comprises the following steps:
mixing the raw materials according to the amount, and vibrating and mixing the raw materials at the temperature of 80-120 ℃ for 30-40 min.
Preferably, the vibration mode is horizontal reciprocating vibration, circumferential vibration or combined vibration, the vibration amplitude is 1-30 mm, and the rotating speed is 0-300 r/min.
The oscillator used can be selected from oscillators commonly used in the field, and preferably SHA-DA digital display high temperature oil bath oscillator.
More preferably, the method for preparing the organosilane coated steel wire composite may be: adding a silane coupling agent into a glass groove of 20 multiplied by 10 multiplied by 8 cm; dissolving the catalyst by using an ethanol solution, and adding the solution into a glass tank containing a silane coupling agent; and (3) putting the glass groove on an SHA-DA digital display high-temperature oil bath oscillator, and vibrating repeatedly for 30-40 min to uniformly mix the silane coupling agent and the ethanol solution containing the catalyst.
It is a further object of the present invention to provide a method for coating a steel wire with an organosilane compound, comprising the steps of:
and putting the steel wire into the organosilane compound, carrying out reciprocating vibration reaction at 50-150 ℃ for 10-60 min, taking out the steel wire, repeatedly washing the steel wire with ethanol, and drying to obtain the steel wire coated with the organosilane compound.
Preferably, the vibration mode is horizontal reciprocating vibration, circumferential vibration or combined vibration, the vibration amplitude is 1-30 mm, and the rotating speed is 0-300 r/min. The oscillation mode can make the reaction between the organosilane coupling agent and the surface of the steel wire more uniform.
The oscillator used can be selected from oscillators commonly used in the field, and preferably SHA-DA digital display high temperature oil bath oscillator.
Preferably, the method of coating a steel wire may comprise: a steel wire of about 15cm in length was placed in a glass tank containing an organic silane compound, covered with a lid, and subjected to a reciprocal vibration reaction at 100 ℃ for 30 min. And taking out the steel wire by using tweezers, washing the steel wire by using ethanol for three times, washing off unreacted silane coupling agent, and drying in an oven at 100 ℃ for 30min to obtain the steel wire coated with the organosilane compound.
The steel wire composite was applied as a rubber carcass material to a rubber formulation and evaluated in a rubber formulation without any adhesive system added. The results of the experiments showed that the drawn part of the wire had a significant adhesive attachment, as shown in fig. 2. This indicates that the steel wire is chemically cross-linked with the rubber by means of the silane coupling agent, namely: one end of alkoxy in the silane coupling agent reacts with hydroxyl on the surface of the steel wire, and one end containing sulfur or double bonds in the silane coupling agent participates in rubber vulcanization. The steel wire compound prepared by the method has the following advantages: the raw materials are simple and easy to obtain, nontoxic and harmless, the operation steps are simple and quick, the flux of the organosilane coated steel wire is large, and the silane coupling agent solution can be repeatedly used.
The invention has the advantages that:
1. the silane coupling agent can be uniformly and quickly attached to the surface of the steel wire by adopting high-temperature oscillation;
2. a series of complex pre-treatments on the surface of the steel wire are not needed;
3. the surface of the steel wire can be coated quickly and in high flux;
4. the used reagent is simple and easy to obtain, is environment-friendly and can be repeatedly used.
Drawings
FIG. 1 is a schematic view showing the interface bonding structure between a compound and rubber coated on the surface of a steel wire with organosilane.
Reference numerals: 1-steel wire; 2-rubber; 3-a metal group on the surface of the steel wire; 4-coating the surface of the steel wire with organosilane; 5-chemical structure of steel wire and rubber interface layer, namely silane coupling agent layer.
The organosilane coated steel wire compound is structurally characterized in that an organosilane coupling agent reacts with hydroxyl on the surface of metal through alkoxy on silicon to form a covalent bond, and meanwhile sulfur or double bonds in the organosilane coupling agent participate in rubber vulcanization reaction to form a covalent bond with rubber molecules.
FIG. 2 is a comparison of drawn portions of steel wires for steel wire adhesion test, 6 is a blank steel wire, and 7 is the steel wire of example 1.
Fig. 3 is an enlarged view of a wire drawing portion.
In fig. 2 and 3, the compound with organosilane coating on the surface of the steel wire can be clearly seen, and in the steel wire drawing experiment, the part of the steel wire drawn by the compound has obvious adhesive, which indicates that the adhesive and the surface of the steel wire have chemical crosslinking.
Detailed Description
The present invention is described in detail below with reference to specific examples. It should be understood that the practical use of the present invention is not limited to the embodiments.
1. Raw materials and reagents
TABLE 1
Wherein, the synthesis method of the 1-butyl-1-methylpyrrole mercaptopropionate refers to patent CN 103794818A; reference to the synthesis of triphenylhexadecylphosphonium bromide "Synthesis and characterization of several organic quaternary phosphonium salts" (Shang Xia Mei, Ro Wen, proceedings of Xiamen university (Nature edition), 1999(s1): 420-.
2. Apparatus and device
TABLE 2
3. Analysis and testing
(1) Preparation of rubber composition
TABLE 3 rubber composition formula
TABLE 4 rubber composition preparation and test equipment
Rubber, carbon black N326, and other raw materials except sulfur and a vulcanization accelerator were mixed for 6 minutes by a 1.6-liter Banbury mixer according to the formulation shown in Table 3 to obtain a master batch. Then, the vulcanization accelerator and sulfur were mixed in the master batch using an open mill, thereby obtaining a rubber composition. The vulcanization conditions for the steel wire and rubber composition were 40 minutes at 150 ℃ and the vulcanization process was as described in standard GB/T16586-2014 (testing the adhesion of the vulcanized rubber to the steel cord).
(2) Testing of rubber composition Properties
Steel wire adhesion testing was as described in Standard GB/T16586-2014 (testing vulcanized rubber for adhesion to steel cord).
4. Sample preparation
EXAMPLE 1 preparation of organosilane coated Steel wire composite
100g of TESPT were introduced into a 20X 10X 8cm glass cell. After dissolving 5g of DPG in 50g of ethanol solution, the solution was added to a glass tank containing TESPT. And (3) putting the glass groove on an SHA-DA digital display high-temperature oil bath oscillator, and vibrating repeatedly at 100 ℃ for 30min to uniformly mix TESPT and the ethanol solution containing DPG. A steel wire with a length of about 15cm was placed, the cover was closed, and the reaction was performed at 100 ℃ for 30min with reciprocal shaking. And taking out the steel wire by using tweezers, washing the steel wire for three times by using ethanol, and washing away the unreacted silane coupling agent. Drying in an oven at 100 deg.C for 30min to obtain the steel wire composite coated with organosilane. Wherein the oscillation amplitude is 20mm, and the rotating speed is 200 r/min.
Examples 2 to 8 preparation of organosilane coated Steel wire composites Using different catalysts
The procedure for preparing the organosilane coated steel wire composite was the same as in example 1, except that the kind of the catalyst was changed.
TABLE 5 catalyst types
Examples 9-12 preparation of different silane-coated Steel wire composites
The procedure for preparing the organosilane coated steel wire composite was the same as in example 1 except that the kind of the silane coupling agent was changed.
TABLE 6 silane coupling agent species
5. Test results
TABLE 7 testing of formulation Properties of Steel wire rubber compositions
Example 1 is a composite of DPG as a catalyst TESPT coating the surface of steel wire. The adhesion of this steel wire composite-rubber composition before aging was improved by 13.3% as compared with that of the bare steel wire (uncoated steel wire) -rubber composition. Example 2 TESPT coated steel wire surface without catalyst. The adhesion of this steel wire composite-rubber composition before aging was improved by 8.8% as compared with that of the bare steel wire (uncoated steel wire) -rubber composition. The effect of the catalyst can thus be seen.
According to the experimental result, after the steel wire is drawn out of the rubber, the part of the steel wire which is not coated, and the steel wire is smooth, so that the rubber material and the surface of the steel wire are not chemically crosslinked; the part of the steel wire drawn out in the example 1 is obviously coated with the glue, which shows that the glue and the surface of the steel wire are chemically crosslinked.
The above examples of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A rubber-organosilane coated steel wire compound, characterized in that the compound is prepared from raw materials comprising the following components in parts by weight:
100 parts of a silane coupling agent;
10-100 parts of a solvent;
wherein the silane coupling agent is a silane coupling agent containing sulfur or unsaturated double bonds, and the solvent is an alcohol or ketone solvent.
2. An organosilane coated steel wire composite as claimed in claim 1 wherein:
the structure of the silane coupling agent is shown as the following formula:
wherein R1, R2 and R3 are the same or different and are independently alkoxy R7O-alkyl polyether group-O- (R8-O) m-R9 structures, R7 is C1-C6 straight chain or branched chain alkyl, R8 is C1-C3 straight chain alkyl, m is 1-20, and R9 is C10-C20 straight chain alkyl; n is 1-4;
r4 is C1-C6 straight chain alkyl;
r5 is H, straight chain or branched chain saturated aliphatic C1-C20 alkyl, straight chain or branched chain unsaturated aliphatic C1-C20 alkyl;
r6 is a straight chain or branched chain unsaturated aliphatic C1-C20 alkyl, or a straight chain or branched chain unsaturated aliphatic C1-C20 alkyl containing hetero atoms.
3. An organosilane coated steel wire composite as claimed in claim 2 wherein:
the silane coupling agent is selected from at least one of vinyl trimethoxy silane, vinyl triethoxy silane, vinyl tri (β -methoxyethoxy) silane, gamma-methacryloxypropyl trimethoxy silane, alpha-methacryloxymethyl triethoxy silane, gamma-mercaptopropyl trimethoxy silane, gamma-mercaptopropyl triethoxy silane, bis- [ gamma- (triethoxy silicon) propyl ] disulfide, bis- [ gamma- (triethoxy silicon) propyl ] tetrasulfide and Si 363.
4. An organosilane coated steel wire composite as claimed in claim 1 wherein:
the solvent is ethanol.
5. An organosilane coated steel wire composite as claimed in any one of claims 1 to 4 wherein:
the compound also comprises a catalyst, and the catalyst accounts for 1-20 parts by weight of 100 parts by weight of the silane coupling agent.
6. An organosilane coated steel wire composite as claimed in claim 5 wherein:
the catalyst is selected from at least one of amine substances, dibutyl tin dilaurate and ionic liquid.
7. An organosilane coated steel wire composite as claimed in claim 6 wherein:
the catalyst is selected from at least one of aliphatic amine, diphenyl guanidine, dicyclohexylamine, quinuclidine, polyethyleneimine, 1-butyl-3-methylimidazole tetrafluoroborate, 1-methylpyrrole mercaptopropionate, 1-butyl-1-methylpyrrole mercaptopropionate and triphenyl hexadecyl phosphorus bromide.
8. A process for the preparation of a rubber-organosilane coated steel wire composite according to any of claims 1 to 7, characterized in that it comprises the following steps:
mixing the raw materials according to the amount, and vibrating and mixing the raw materials at the temperature of 80-120 ℃ for 30-40 min.
9. A method of coating a steel wire with an organosilane compound, characterized in that it comprises the following steps:
putting the steel wire into an organosilane compound, carrying out reciprocating vibration reaction at 50-150 ℃ for 10-60 min, taking out the steel wire, repeatedly washing the steel wire with ethanol, drying to obtain the steel wire coated with the organosilane compound,
wherein the steel wire composite is coated with the organosilane for rubber as defined in any one of claims 1 to 7; the vibration mode is horizontal reciprocating vibration, circumferential vibration or combined vibration, the vibration amplitude is 1-30 mm, and the rotating speed is 0-300 r/min.
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| CN112250919A (en) * | 2020-10-09 | 2021-01-22 | 东莞铧冠橡塑制品有限公司 | Yellowing-resistant rubber for soles and preparation method thereof |
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| CN112250919A (en) * | 2020-10-09 | 2021-01-22 | 东莞铧冠橡塑制品有限公司 | Yellowing-resistant rubber for soles and preparation method thereof |
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| CN111100335B (en) | 2022-03-22 |
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